Well the original Little Red compared to the revival Little Red is like day and night. But, I think she can be played pudgy or thin. I don't know why, but I prefer the original Little Red. I think it's because she was a little older and, even though she was playing such a young character, her age gave the character better comedic timing and more strength. I just love the show.
Little Red is a combination of a lot of personalities. She is inquisitive, gullible, a little bratty (like most little girls), loving, and cute as a button. She is a combination of all of these, and whatever you think should be thrown in depending on how you think she should be played. That's the magic of it all, you get to be Little Red, so you get to pick how Little Red will be...with a little help from your director, of course. LOL
"I love talking about nothing. It is the only thing I know anything about." - Oscar Wilde